Following on to the benefits of leading pedestrian interval (LPI) signals for walkers, more LPIs, these signals can also benefit bicyclists.
I routinely see bicyclists proceeding on the pedestrian signal, before the traffic signal has turned green, at every location with a LPI. And that’s what I do. Technically it is not legal to do so, so I would like to see state law changed so that it clearly is legal. Even though unlikely to be enforced, there is no reason to give law enforcement a pretext to harass bicyclists.
The permission should be for bicyclists proceeding straight, not for bicyclists turning. Though a turning bicyclist presents a tiny fraction of the danger to walkers of a motor vehicle driver, I still don’t want to see walkers using the LPI to feel intimidated by bicyclists.
When the stop as yield at stop signs, and the stop and proceed when safe at stop lights, is eventually passed in California (this is called the Idaho stop law, though it is now in several other states and being considered in more), this proceed on LPI will become moot. However, being somewhat cynical (or very), I suspect that CHP will succeed in deep-sixing any such change in law for a number of years.
The simpler step forward of permitted bicyclists to proceed straight on LPI should not be controversial with anyone, and could be passed and implemented this this legislative session.